﻿using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ConsoleApp4
{
    class Person
    {
        private string name;
        public string Name 
        {
            get { return this.name; }
            set { this.name = value; }
        }
        public Person() 
        {

        }
        public Person(string name) 
        {
            Name = name;
        }
        public virtual string Hello()
        {
            return null;
        }
    }
}
